Advertisements
Advertisements
प्रश्न
Tick the most appropriate answer.
Friction is offered by
पर्याय
solids
liquids
gases
all of these
Advertisements
उत्तर
all of these
APPEARS IN
संबंधित प्रश्न
Friction opposes the ______ between the surfaces in contact with each other.
Fill in the blank.
We use ball bearings to .................. the friction.
Name the two kinds of forces in nature.
A body needs a force F1 just to start moving on a surface, a force F2 to continue its motion and a force F3 to roll on the surface. What is
- the static friction
- sliding friction and
- rolling friction? State whether F2 is equal, less than or greater than (1) F1 and (2) F3.
State if the following statement is true or false. Correct the statement if it is false.
Like charges always attract each other.
Fill in the blank.
Rolling friction is ........... than sliding friction.
State if the following statement is true or false. Correct the statement if it is false.
Friction has no relation with our walking or running.
Answer the following in short.
When you push something heavy, the resistance you feel decreases as soon as the object starts moving. Explain the reason.
Why is a ball bearing used in a cycle hub?
Analogy
Objects placed at rest on earth: ______:: Bodies slide over the surface on other body: ______.
